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[bryan <2065451@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

We created an instance and then rebooted it, but the instance xml is
changed after we reboot it, the following lines were added to the xml:

    <input type='keyboard' bus='usb'>
      <alias name='input1'/>
      <address type='usb' bus='0' port='2'/>
    </input>

We read the nova code, find that the input device info was refreshed
into nova db using the following line:
nova.virt.libvirt.driver.LibvirtDriver.spawn#self._register_undefined_instance_details(context,
instance),

but when the instance is booting,
nova.virt.libvirt.driver.LibvirtDriver.spawn#xml =
self._get_guest_xml(context, instance, network_info, disk_info,
image_meta, block_device_info=block_device_info, mdevs=mdevs,
accel_info=accel_info) record the xml without the usb keyboard, this may
be the trick.

Thank you for looking into it.

** Affects: nova
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/2065451

Title:
  Updated image property did not synced to instance

Status in OpenStack Compute (nova):
  New

Bug description:
  We created an instance and then rebooted it, but the instance xml is
  changed after we reboot it, the following lines were added to the xml:

      <input type='keyboard' bus='usb'>
        <alias name='input1'/>
        <address type='usb' bus='0' port='2'/>
      </input>

  We read the nova code, find that the input device info was refreshed
  into nova db using the following line:
  nova.virt.libvirt.driver.LibvirtDriver.spawn#self._register_undefined_instance_details(context,
  instance),

  but when the instance is booting,
  nova.virt.libvirt.driver.LibvirtDriver.spawn#xml =
  self._get_guest_xml(context, instance, network_info, disk_info,
  image_meta, block_device_info=block_device_info, mdevs=mdevs,
  accel_info=accel_info) record the xml without the usb keyboard, this
  may be the trick.

  Thank you for looking into it.

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